package com.xueyl.springboot;

import java.util.Map;

import javax.persistence.EntityManager;
import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
		transactionManagerRef="transactionManagerSecondary",
		entityManagerFactoryRef="entityManagerFactorySecondary",
		basePackages="com.xueyl.springboot.domain.secondary"
		)
public class SecondaryConfig {
	

	@Autowired
	@Qualifier("secondaryDataSource")
	private DataSource secondaryDataSource;
	
	@Bean("entityManagerSecondary")
	public EntityManager entityManagerSecondary(EntityManagerFactoryBuilder builder){
		return entityManagerFactorySecondary(builder).getObject().createEntityManager();
	}
	
	@Bean("entityManagerFactorySecondary")
	public LocalContainerEntityManagerFactoryBean entityManagerFactorySecondary(EntityManagerFactoryBuilder builder){
		return builder
				.dataSource(secondaryDataSource)
				.properties(getVendorProperties(secondaryDataSource))
				.packages("com.xueyl.springboot.domain.secondary")
				.persistenceUnit("secondaryPersistenceUnit")
				.build();
	}

	@Autowired
	private JpaProperties jpaProperties;
	
	
	private Map<String, ?> getVendorProperties(DataSource dataSource) {
		return jpaProperties.getHibernateProperties(dataSource);
	}
	
	@Bean("transactionManagerSecondary")
	public PlatformTransactionManager transactionManagerSecondary(EntityManagerFactoryBuilder builder){
		return new JpaTransactionManager(entityManagerFactorySecondary(builder).getObject());
	}
}
